helpdlg.cpp

RSA加密算法的实现 。它是第一个既能用于数据加密 也能用于数字签名的算法。它易于理解和操作

#include "stdafx.h"
#include "RsaKit.h"
#include "HelpDlg.h"

CHelpDlg::CHelpDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CHelpDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CHelpDlg)
	//}}AFX_DATA_INIT
}

void CHelpDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CHelpDlg)
	DDX_Control(pDX, IDC_EDIT, m_Edit);
	DDX_Control(pDX, IDC_TREE, m_Tree);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CHelpDlg, CDialog)
	//{{AFX_MSG_MAP(CHelpDlg)
	ON_NOTIFY(TVN_SELCHANGED, IDC_TREE, OnSelchangedTree)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

BOOL CHelpDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();

    TV_INSERTSTRUCT TreeCtrlItem;

	TreeCtrlItem.hParent = TVI_ROOT;
	TreeCtrlItem.hInsertAfter = TVI_LAST;
	TreeCtrlItem.item.mask = TVIF_TEXT | TVIF_PARAM;
	TreeCtrlItem.item.pszText = _T("使用说明");
	TreeCtrlItem.item.lParam = 1;
	HTREEITEM hTreeItem1 = m_Tree.InsertItem(&TreeCtrlItem);

	
	TreeCtrlItem.hParent = hTreeItem1;
	TreeCtrlItem.item.pszText = _T("计算器使用说明");
	TreeCtrlItem.item.lParam = 2;
	m_Tree.InsertItem(&TreeCtrlItem);

	TreeCtrlItem.hParent = hTreeItem1;
	TreeCtrlItem.item.pszText = _T("RSA加解密使用说明");
	TreeCtrlItem.item.lParam = 3;
	m_Tree.InsertItem(&TreeCtrlItem);  
	
	return TRUE;
}

void CHelpDlg::OnSelchangedTree(NMHDR* pNMHDR, LRESULT* pResult) 
{
	NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;
	switch(pNMTreeView->itemNew.lParam)
	{
	case 0:
		break;
	case 1:
		m_Text="";
		m_Text+="\r\n";
		m_Text+="    此程序主要应用与用RSA算法对明文进行加解密";
        m_Edit.SetWindowText(m_Text);
		break;
	case 2:
		m_Text="";
		m_Text+="\r\n";
		m_Text+="    计算器主要用于进行大数或普通整数之间的一些基本运算";
		m_Text+="\r\n";
	    m_Edit.SetWindowText(m_Text);
		break;
	case 3:
        m_Text="";
		m_Text+="\r\n";
		m_Text+="  对于N,D,E可以自己输入也可以随机产生，通过随机产生N,D,E程序可计算出产生";
		m_Text+="\r\n";
		m_Text+="计算N,D,E所花费的时间，可以选择密钥的长度，当然不同长度的密钥产生的时间";
		m_Text+="\r\n";
		m_Text+="也就不一样；产生N,D,E后，输入明文就可以进行加密与解密了；明文是十进制或";
		m_Text+="\r\n";
		m_Text+="十六进制格式的字符串";
		m_Text+="\r\n";
        m_Edit.SetWindowText(m_Text);
		break;
	
   	*pResult = 0;
	}
}